The ->getxattr op doesn't take the i_sem (see
Documentation/filesystems/Locking)
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Separate out the little bit of logic in fh_verify that checks the i_mode into
a separate function.  This is nicely encapsulated, fh_verify() is overly long
anyway, and this change helps make a subsequent nfs4 named attribute change
clearer.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Bug Fix: Non NFSD conflicting byte-range locks were causing an Oops.

Encode a zero length owner and zero clientid for non NFSD conflicting locks in
the lock_denied response.
Signed-off-by: Andy Adamson <andros@umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Kconfig barfs if it doesn't have leading spaces in the help.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Attached is a patch that adds CONFIG_INITRAMFS_SOURCE, enabling you to
either specify a file as cpio_list, or a directory to generate a list from.

It depreciate the INITRAMFS_LIST environment variable introduced not long
ago.

There are some issues (suggestions/patches welcome) that I am not
sure about:
1) I put the menu entry under block devices, but I am not sure if
   this is the correct location?
2) There might be a better (or more correct) way to do this with
   kbuild?
3) Variable names and especially help text needs some love.
4) I am not sure if I am duplicating work in progress?
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch makes gen_init_cpio generate the initramfs_data.cpio from a file
which contains a list of entries: file, dir, nod.  I swapped the order of
filename/location for the file arguments so that it would be more uniform
with the dir and node tyes.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Fix up various things which Rusty's patch broke or missed.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [V4L] mxb, dpc7146, hexium_orion, hexium_gemini: follow latest changes in
  saa7146 driver
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] all: replace dvb_unregister_frontend_new() with
  dvb_unregister_frontend()

- [DVB] sp887x: fix firmware download, patch by Jose Alberto Reguero

- [DVB] tda1004x: add firmware loading via firmware_class()

- [DVB] dvb_frontend: without hierachical coding, code_rate_LP is
  irrelevant, so we tolerate the otherwise invalid FEC_NONE setting

- [DVB] ves1x93: fixed dropouts on older DVB cards, fix tuning issues
  (Andreas Share / Gregoire Favre), 
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] av7110: convert MODULE_PARM() to module_param(), replace home-brewn
  waiting stuff in osd code with wait_event_interruptible_timeout()

- [DVB] av7110: put a semaphore around osd calls to make sure they're
  properly serialized, timeout variable in arm_thread() must be int, not
  unsigned long

- [DVB] av7110: add additional OSD window types (patch by Jeremy Jones), new
  ioctl OSD_GET_CAPABILITY/OSD_CAP_MEMSIZE; returns size of OSD memory

- [DVB] av7110: put audio/video initialization into separate function
  init_av7110_av(); call this function after system initialization and after
  arm crash to restore the previous state; thanks to Soeren Sonnenburg
  <bugreports@nn7.de> for this patch.

- [DVB] av7110, budget, ttusb-budget: remove dvb i2c remains, support kernel
  i2c

- [DVB] av7110, budget: use msleep() instead of my_wait(), thanks to Kernel
  Janitors/Nishanth Aravamudan <nacc@us.ibm.com>

- [DVB] av7110, budget: fix videodev has no release callback

- [DVB] av7110: more sparse annotiations

- [DVB] budget: add support for TerraTec Cinergy 1200 DVB-S

- [DVB] budget: fix race condition in irq handler

- [DVB] skystar2, av7110, ttusb-budget, budget: make i2c
  client_(un)register() functions static
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] new driver for mobile USB Budget DVB-T devices, thanks to Patrick
  Boettcher
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] add new driver for mobile DVB-T demodulator DiBcom 3000-MB
- [DVB] add new drivers to Makefile
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] add new driver for Zarlink DVB-T MT352 frontend
- [DVB] add new driver for Conexant 22702 DVB OFDM frontend 
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] nxt6000, sp887x: convert from dvb-i2c to kernel-i2c, MODULE_PARM()
  to module_param(), dvb_delay() to mdelay()

- [DVB] sp887x: move from home-brewn firmware loading to firmware_class
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] dvb_dummy_fe, grundig_29504-401, grundig_29504-491, mt312: convert
  from dvb-i2c to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to
  mdelay()

- [DVB] update frontend Kconfig
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] alps_tdlb7, alps_tdmb7, at76c651, cx24110, dst: convert from dvb-i2c
  to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay()

- [DVB] alps_tdlb7: move from home-brewn firmware loading to firmware_class

- [DVB] dst: use sysfs attributes for type and flags for per-card parameters
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] stv0299, tda1004x, ves1820, ves1x93: convert from dvb-i2c to
  kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay()

- [DVB] tda1004x: move from home-brewn firmware loading to firmware_class

- [DVB] stv0299: support Cinergy1200, patch by Uli Luckas
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] remove non-linux compatibility stuff from dvb_functions.  rest in
  peace.

- [DVB] remove home-brewn dvb-i2c stuff. rest in peace.

- [DVB] convert MODULE_PARM() to module_param()

- [DVB] convert dvb_delay() to mdelay()

- [DVB] convert C++ comments to C comments

- [DVB] dvb_ca_en50221: fix for matrix CAMs from Sjoerd Simons, use c99
  initializers, Fix for aston CAM read timeout problems, Moved CAM CTRL IF
  reset to a better place, better debugging with multiple cards (Sjoerd
  Simons)

- [DVB] dvb-frontend: patch by Wolfgang Fritz: suppress spurious events
  during tuning, Do not allow write (and related) ioctls when frontend is
  opened RDONLY, Properly lock the frontend module on open/close, patch by
  Christopher Pascoe: remove bogus up(fe->sem) on fe thread exit, patch by
  Christopher Pascoe: remove bogus up(fe->sem) on fe thread exit

- [DVB] dvb-demux: using spin_lock instead of spin_lock_irq caused a race
  condition between irq/tasklet and user space task

- [DVB] dvb-core: add sysfs/udev support using "class_simple", prevent Oops
  when PES filter is set with invalid pes_type, protect feed_list with
  spin_locks
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] convert drivers from dvb-i2c to kernel-i2c
- [DVB] convert MODULE_PARM() to module_param()
- [DVB] convert dvb_delay() to mdelay()
- [DVB] dvb-bt8xx: convert home-brewn bttv i2c access to a real bttv sub-driver
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] add udev.txt which describes how to use dvb and udev/sysfs
- [DVB] add Visionplus VisionDTV USB-Ter DVB-T adapter documentation
- [DVB] update TT USB DEC documentation
- [DVB] update various Kconfig entries
- [DVB] remove obsolete firmware documentation
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- [DVB] fix videodev has no release callback

- [DVB] use PAGE_SIZE for pagetables, not home-brewn SAA7146_PGTABLE_SIZE

- [DVB] use cpu_to_le32() at various places for endianess independency

- [DVB] turn some error checks into BUG()s

- [DVB] make saa7146_i2c_adapter_prepare() support an adapter class

- [DVB] add support for V4L2_PIX_FMT_RGB32 pixelformat

- [DVB] replace generic saa7146 i2c name by card specific name, suggested by
  Uli Luckas <luckas@musoft.de>
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This is a minor cleanup for the msp3400.c module: use the new msleep()
function for delays.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The problem is that dvb is way to much work-in-progress right now, it's
almost impossible to build something which works on both mainline kernel +
latest dvb cvs.  Hope at least the interfaces are settled soon, for now I
gave up on getting it work in mainline in short-term.

The patch below compiles the DVB card configuration code only when
VIDEO_CX88_DVB is enabled (which is commented right now in Kconfig due to
being broken).
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This is a major update of the cx88 driver.  Main new feature is support
for the MPEG PCI function of the cx2388x chips.  The changes in detail:

  * A bunch of code restructions, to allow multiple modules (one per PCI
    function) work on top of the core module.
  * Add a new module with common code for the mpeg PCI function.
  * Add a new module to support mpeg encoder cards (connexant
    "blackbird" reference design).  That one is not much tested yet and
    may have bugs.  They can be easily workarounded by not loading the
    module through, it isn't needed to capture uncompressed video.
  * Add a new module to support DVB cards.  That one is better tested
    than the blackbird one, but it needs additional cutting-edge stuff
    from the dvb project, thats why it is disabled in Kconfig for now.
  * Several cleanups along the way: use kthread, use msleep(), drop some
    2.4.x compatibility code, move insmod options to 2.6 style, ...
  * adapt code to the video-buf changes.
  * suspend fixes.
  * as usual some new tv cards.
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This update for the bttv driver.  Changes:
 * adapt the driver to video-buf changes.
 * It also added sanity checks for the bt878 risc code buffer sizes.
 * adds support for new tv cards.
 * cleanup i2c driver autoload.
 * misc cleanups (msleep, ...).
 * fix IRQ bug when stopping vbi capture.
 * drop check for cx2388x (bt878 successor) and the printk saying bttv
   doesn't support these.
 * set i2c class correctly for dvb cards.
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch adapts the saa7146 driver to the video-buf changes.
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch makes the video-buf helper module pass through a void pointer
instead of a struct file pointer, that makes the code also usable when no
file pointer is available.  This is needed for when using the video-buf
infrastructure to manage DMA buffers for DVB cards.

The file pointer was used by the videobuf_queue_ops callbacks to get the
drivers private data via file->private_data, now a pointer to the drivers's
private data can be passed directly.

Adaptions of the drivers follow with separate patches.
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This is a update for the analog tv tuner module, it adds support for two
new tuner chips.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Let's lighten the global spinlock mmlist_lock.

What's it for?
1. Its original role is to guard mmlist.
2. It later got a second role, to prevent get_task_mm from raising
   mm_users from the dead, just after it went down to 0.

Firstly consider the second: __exit_mm sets tsk->mm NULL while holding
task_lock before calling mmput; so mmlist_lock only guards against the
exceptional case, of get_task_mm on a kernel workthread which did AIO's
use_mm (which transiently sets its tsk->mm without raising mm_users) on an
mm now exiting.

Well, I don't think get_task_mm should succeed at all on use_mm tasks.
It's mainly used by /proc/pid and ptrace, seems at best confusing for those
to present the kernel thread as having a user mm, which it won't have a
moment later.  Define PF_BORROWED_MM, set in use_mm, clear in unuse_mm
(though we could just leave it), get_task_mm give NULL if set.

Secondly consider the first: and what's mmlist for?
1. Its original role was for swap_out to scan: rmap ended that in 2.5.27.
2. In 2.4.10 it got a second role, for try_to_unuse to scan for swapoff.

So, make mmlist a list of mms which maybe have pages on swap: add mm to
mmlist when first swap entry is assigned in try_to_unmap_one (pageout), or
in copy_page_range (fork); and mmput remove it from mmlist as before,
except usually list_empty and there's no need to lock.  drain_mmlist added
to swapoff, to empty out the mmlist if no swap is then in use.

mmput leave mm on mmlist until after its exit_mmap, so try_to_unmap_one can
still add mm to mmlist without worrying about the mm_users 0 case; but
try_to_unuse must avoid the mm_users 0 case (when an mm might be removed
from mmlist, and freed, while it's down in unuse_process): use
atomic_inc_return now all architectures support that.

Some of the detailed comments in try_to_unuse have grown out of date:
updated and trimmed some, but leave SWAP_MAP_MAX for another occasion.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The low byte of FAT's first entry must have same value with media-field.

So, I added that validity check for some case. In fact, in some case
this check detected non-FAT filesystem.  But in real world,
unfortunately too many devices is writing a wrong value.

This patch removes that validity check.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch make sure it's <= sbi->clusters.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch fixes the race condition

  |      fat_free                |    fat_get_cluster
  +------------------------------+-----------------------
                                     fat_cache_lookup()
                                     (get the copy of cache)
   fat_cache_inval_inode()
(invalidate caches on inode)
                                     fat_cache_add()
                                     (update/add the getted cache)

The above race has possible that invalidated cache is added.

This patch fixes the race condition by adding the cache-id to copy of cache.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This rewrites the cache stuff for file allocation table (FAT).

This cache stocks the more pieces of FAT-chain by counting the number
of contiguous data blocks. And if cache hit, since a block number can
calculate without looking FAT-chain up, fat_get_block() become more
fast.

But if data blocks was fragmenting, unfortunately this cache is unuseful.

read from block device

[1st]# time dd if=/dev/hda6 of=/dev/null bs=1M count=2048
2147483648 bytes transferred in 229.524189 seconds (9356241 bytes/sec)
real    3m49.557s, user    0m0.026s, sys     1m20.414s
[2nd]# time dd if=/dev/hda6 of=/dev/null bs=1M count=2048
2147483648 bytes transferred in 229.539358 seconds (9355623 bytes/sec)
real    3m49.647s, user    0m0.036s, sys     1m20.144s

read from full contiguous file with this patch

[1st]# time dd if=data of=/dev/null bs=1M count=2048
2147483648 bytes transferred in 337.959477 seconds (6354264 bytes/sec)
real    5m37.970s, user    0m0.031s, sys     1m21.915s
[2nd]# time dd if=data of=/dev/null bs=1M count=2048
2147483648 bytes transferred in 225.401699 seconds (9527362 bytes/sec)
real    3m45.476s, user    0m0.027s, sys     1m19.286s

read from full fragmented file with this patch

[1st]# time dd if=data of=/dev/null bs=1M count=2048
2147483647 bytes transferred in 1146.529081 seconds (1873030 bytes/sec)
real    19m6.538s, user    0m0.020s, sys     1m32.774s
[2nd]# time dd if=data of=/dev/null bs=1M count=2048
2147483647 bytes transferred in 1045.084822 seconds (2054841 bytes/sec)
real    17m25.152s, user    0m0.022s, sys     1m34.801s

read from full contiguous file without this patch

[1st]# time dd if=data of=/dev/null bs=1M count=2048
2147483648 bytes transferred in 348.144707 seconds (6168365 bytes/sec)
real    5m48.169s, user    0m0.019s, sys     1m29.962s
[2nd]# time dd if=data of=/dev/null bs=1M count=2048
2147483648 bytes transferred in 324.017361 seconds (6627681 bytes/sec)
real    5m24.038s, user    0m0.023s, sys     1m20.602s

read from full fragmented file without this patch

[1st]# time dd if=data of=/dev/null bs=1M count=2048
2147483647 bytes transferred in 1156.845693 seconds (1856327 bytes/sec)
real    19m16.855s, user    0m0.031s, sys     1m32.172s
[2nd]# time dd if=data of=/dev/null bs=1M count=2048
2147483647 bytes transferred in 1066.518713 seconds (2013545 bytes/sec)
real    17m46.526s, user    0m0.023s, sys     1m33.630s
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

These were used by the defunct umsdos code only.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>